16. Yue Yue, ________ 2yearold girl who was hit, began to slip into ________ worse state on Tuesday night.
A.the; the B.a; a
C.a; the D.the; a
[解析]第一空为定指，用 the;第二空表示“数量一”，用 a。
[答案]D
17.Huangshan is ________ most beautiful tourist site and I want to visit it ________ second time next month.
A. the; the B. the; a
C. a; a D. a; the
[解析]句意：黄山是一处非常优美的旅游景点，下个月我想再去一次。第一空 most 前加 a，表示“很”;若 most 前加 the 则表示“最”，试比较：This is the most interesting film I've ever seen.这是我看过的最有意思的电影。It is a most interesting film，but not better than Let the Bullets Fly.这是一部很有意思的电影，但不如《让子弹飞》好。序数词前面加不定冠词，表示“又，再”，故C项正确。
[答案]C
18.—Would you mind giving your advice on how to improve our business management?
—If you make ________ most of the equipment, there will be ________ rise in production.
A. /; / B. the; a
C. /; a D. the; /
[解析]句意：—你介意给我提些怎样改善公司管理的建议吗?—如果你充分利用设备，产量将会增加。make the most of 为固定短语，意为“充分利用，尽量利用”;a rise in指“在某一方面的增长”，故B项正确。
[答案]B
19.It is ________ great honour for China to develop ________ fastest computer in today's world.
A. a; the B. an; the
C. an; a D. a; a
[解析]句意：在当今世界开发最快的电脑对中国来说是一项盛誉。honour 前加不定冠词，为抽象名词具体化，a great honour 指“一件光荣的事或一个值得赞美的人”;第二空 computer 前加了形容词最高级 fastest，故需加定冠词 the，因此A项正确。
[答案]A
20.You'd better use another dictionary, because ________ page of the dictionary is torn, and ________ cover looks old.
A.the; the B.a; a
C.a; the D.the; a
[解析]第一空为“数量一”，用 a;第二空为定指，用 the。
[答案]C
21.Jack is ________ honest and hardworking boy and he must be ________ useful man in the future.
A. a; a B. an; an
C. an; a D. a; an
[解析]句意：杰克是一个诚实刻苦的男孩，他将来一定是个有用的人。第一空后 honest 的第一个音素为元音音素，前需加不定冠词 an;而第二空后 useful 的第一个音素为辅音音素，前需加不定冠词 a，故C项正确。
[答案]C
22.As is known to all, ________ opening ceremony of the 16th Asian Games held on November 12th in Guangzhou was ________ great success.
A. /; a B. the; a
C. the; / D. a; /
[解析]句意：众所周知，11月12日在广州举行的第16届亚运会开幕式取得了巨大的成功。第一空特指“11月12日在广州举行的第16届亚运会的开幕式”，前需加定冠词 the;第二空为抽象名词具体化，a success 指“一件成功的事”，success 前需加不定冠词 a，故B项正确。
[答案]B
23.I was surprised to know that ______ two top students were caught stealing in the supermarket. Worse still, ________ third one was found fighting with others.
A. the; a B. the; the
C. /; a D. /; the
[解析]句意：听说两个好学生在超市偷东西被抓我很吃惊;更糟的是，又一个被发现跟别人打架。第一空泛指“两个好学生”，前面不加冠词;而第二空表示“又一个”，需在序数词的前面加不定冠词 a，故C项正确。
[答案]C
24. Let us suppose that you are in ________ position of ________ parent. Would you allow your child to do such a thing?
A. a; a B. a; the
C. the; a D. the; the
[解析]句意：让我们假设你处在父亲或母亲的位置上，你会允许你的孩子做这样的事吗?position 为特指，指“父母的位置”;而 parent 为单数可数名词，指“父亲或者母亲”，故C项正确。
[答案]C
25.—Can you wait for ________ second? I'm going to collect ________ car.
—Sure.
A. the; a B. the; the
C. a; the D. /; a
[解析]句意：—你能等一会儿吗?我去取车。—当然可以。second 此处为可数名词，意为“一会儿，片刻”，前面需加不定冠词 a;而后面的 car 特指双方都知道的车，前需加定冠词 the，故C项正确。
[答案]C
26.It's ________ wise choice to use a four wheel drive car on ________ snowy day.
A. a; a B. the; /
C. /; a D. the; the
[解析]句意：在下雪天用四轮跑车是明智的选择。choice 为可数名词，此处为泛指，a... choice 指“一个……的选择”;第二空亦为泛指，指“某个下雪天”，故A项正确。
[答案]A
27.—How did I do on ________ test?
—Well, actually you didn't do very well. I wonder if you had had ________ good review of your lessons.
A. a; a B. the; the
C. a; the D. the; a
[解析]句意：—我考试考得怎么样?—事实上你考得不是很好。我想知道你是不是好好复习功课了。第一空为特指，特指双方都知道的考试;review“复习，检查”，a review of“对……的复习/回顾”，故D项正确。
[答案]D
28.Everybody has ________ responsibility to save water, if future generations are to enjoy ________ similar standard of living to the one we enjoy now.
A. the; / B. a; a
C. /; the D. a; the
[解析]句意：如果未来几代人要想跟我们今天享有的生活标准一样的话，每个人都有责任节约用水。have a responsibility to do sth.“做某事的责任”;第二空泛指“跟我们今天类似的生活标准”，要加不定冠词 a，故B项正确。
[答案]B
29.The driver was at ______ loss when ______ word came that he was forbidden to drive for speeding.
A. a; / B. /; /
C. the; the D. a; the
[解析]句意：当消息传来他因超速而被禁驾时，这位司机慌神了。at a loss 为固定短语，意为“不知所措”;word came that... 亦为固定句式，意为“消息传来……”，word 作“消息”讲，为不可数名词，前面不加冠词，后常接 that 引导的同位语从句，说明 word 的具体内容，故A项正确。
[答案]A
30.It is reported that China is developing ________ emergency plan to solve ________ traffic jam crisis in Beijing.
A. the; the B. an; /
C. an; the D. /; the
[解析]句意：据报道，中国正制订紧急计划来解决北京交通拥挤问题。第一空 plan 为单数可数名词，此处为泛指，需用不定冠词，且 emergency 以元音音素开始，故用 an 修饰;第二空特指“交通拥挤的危机”，故需加定冠词，因此C项正确。
[答案]C
